Grapple



R. H. VRICLE.

GRAPPLE.

APPLICATION FILED IIILY 2I. 1920.

Patented Feb. 14, 1922.

I FIG. 4

annuel., E

T OFFIQE.

ROGER I-I. VARICLE, OF LOS ANGELES, CALIFORNIA.

GRAPPLE.

innato-a.

I application filed July 2i.,

To all w iwf/n. t may concern.' y

Be it known that l, Boone H. Vaincre, a citizen ot' the United States,residingat Los Angeles, in thecounty of Los Angeles, State orCalifornia, have invented certain new and useful Improvements inGrapples; and l do hereby declare the following to be a i'ull, clear,and exact description et the invention, suchas will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in liftingdevices, and particularly to grapples.

@ne object ot the present invention is to provide a. novel and improvedconstruction ot' grapple which has gripping jaws which move in unisonand in parallelism.

Another object is to provide a novel and improved device or' thischaracter wherein the weight of an object gripped between the jawsthereof will have a. tendency to cause the jaws to move toward eachother and more irmly grip the object.

A further object is to provide a novel and improved device of thischaracter whe-rein upon movement et either of the jaws, in an upwarddirection, or in a downward direction, the other jaw will becorrespondingly moved.

@ther objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawing.

In the drawino':

Figure 1 is side elevation ot the grapple in position when engaged withan object.

Figure 2 is a side elevation of the device without an object, and thejaws in open position. n

Figure 3 is an end view of the device.

Figure 4 is a horizont-al sectional view through the operating faces ofthe jaws, showing the gripping plates thereof.

Referring particularly to the accompanying drawing, 10 represents anarcuate metal plate having an eye 11 in its upper end Jfor the receptionot the suspending ring 12, a chain (not shown) being connected to saidring for suspendingn the device and the object gripped thereby.Tivotally connected to the lower portion of the member 10, at the innerends, is an L-shaped pair of plates 13, dislposed on opposite sidesno'fthe said member 10, A similarly shaped, but smaller pair otSpecification of Letters Patent.

Patented Feb. 14, 1922.

1920. serial No. 397,922.

are in parallel relation to the lower horizon-` tal and straight edgesot the plates 13, while the outer vertical straight edges ofthe plates 14 are parallel to the inner vertical straight edges of the plates 13.Disposed between the intermediate portions ot' the pairs of plates 13and the pairs oi plates 1a is a sub-- stantially triangular metal plate15, the upper or apexV end of which is connected to the plates 13 and1-1 by the pivot pin 16, wjhile the forward or outer lower angle isdisposed `between the outer portions of the plates 13. The lower portionof the plate 15 is pivotally connected to the plates 11i by the rivet15. the said portions oit the plates 13, adjacent the said angle of theplate l5, to maintain the plates 13 and la in proper and rigid relationto each other, and tor simultaneous movement.

A metal 'plate 18 has a flat stem 19 which is disposed between the billsot the plates 13, a rivet 20 being disposed through said bills and stemto hold the same in proper position. The inner tace of the plate 1Srests against the inner vertical straight edge 'taces of the said bills,while the outer or working face of the plate is scored or otherwiseroughened to afford a good gripping action on an object to be. lifted. Asimilar plate 21 has its stem 22 secured between the bills of the platesla, and the outer face scored and disposed in opposing relation to theplate 18 for cooperation therewith to grip an object placed between thejaws formed thereby.

lt will be noted that the intermediate portions of the pivots ot theplates 13 and 14, as well as the rivet member 17, are slightly enlargedin diameter to provide etlicient bearings for the plates 13 'and 14, aswell as the member 10.

lt will be noted that the ye 11 of the member 10 is disposed in avertical line above the opening` between the jaw faces, whereby when anobject is gripped between said jaws, and suspended thereby, the weightof the object will have a tendency to produce a slight cant to theentire device, on the ring A rivet 17 is disposed throughy 1Q as thepivot, with the result that the jaws will lie in a slightly inclinedposition, and more firmly grip the object.

What is claimed is: Y

l. A grapple comprising a carrying member, a pair of laterally anddownwardly directed jaw members movably connected to one end of thecarrying member and in a vertical line beneath the other end thereofwhen carrying a load, and a member movably connecting the jaw memberswhereby movement of either jaw in either direction will result in thesimultaneous and parallel movement of the other jaw, with respect to thejaw moved.

2. A grapple comprising an arcuate carrying member, a pair or L-shapedplates having corresponding arms pivotally connected to the carryingmember, a second smaller pair of L-shaped plates having correspondingarms pvoted to the carrying member below the pivot of the first Lshapedrplates and with their other arms directed into parallel relation to theother arms of the first plates, a plate disposed between and pivotallyconnecting the first and secondL- shaped plates, and gripping facessecured between the said other arms of the L-shaped plates in opposingrelation.

3. A grapple including a laterally curved and vertical carrying member,a pair of laterally and downwardly extending gripping jaws Vpivotallycarried by the carrying member and simultaneously movable toward andaway from each other upon movement of the carrying member, and a. linkpivotally con nesting the jaws for maintaining the parallel relation ofthe jaws at all times.

In testimony whereof, l affix my signature, in the presence of twowitnesses.

ROGER H. VARICLE.

Witnesses:

ROGER S. PAGE, M. HUGGINs.

